
Gauss programs to implement the methods described in "How Factual are
your Counterfactuals?" by Gary King and Langche Zeng.  The current
version of this paper, and of these programs, are available at
http://GKing.harvard.edu. 


distance.g      Computes distance from a counterfactual to a data set
distance.prg    example of usage for distance.g
inhull.g        Computes whether counterfactuals are in the convex hull
inhull.prg      example of usage for inhull.g
overlap.g	Computes which observations are in the overlap region
dens.g		support procedure: computes density estimates

These programs are written in, and for use in, Gauss.  We plan to
provide versions in other programs or that have easier-to-use front
ends.

Version: 5/19/05